EKG Test Senior Flashcards
what is the pacemaker of our heart; fire and sends impulses through both atriums
SA Node/Sinoatrial Node
what sends out electrical impulses down the bundle of his into the right and left branches through the purkinje fibers
AV Node/Atrioventricular Node
what sends out activity for ventricles to contract
Purkinje Fibers
1st bump, signals the beginning of the hear beat, responds to excitement over both atrius; Atrial Depolarization;ATRIAL ACTIVITY
P Wave
AV node to Bundle of his and into purkinje fibers; corresponds to invasion of ventricular muscles of exciteable implulses; Big blip; Ventricular Depolarization; VENTRICLE ACTIVITY
QRS WAVE
Relaxation of the heart
T Wave
Space between P and R
PR Interval
Viewing hear right at top;Horizontally
Lead 1
Cadicornered view of the heart from right arm to left foot
Lead 2
Oblique view of the heart from left arm to left leg
Lead 3
What foot is used only for a ground
Right
AVR
right arm
AVL
left arm
going straight acrossw from both arms to left foot
AVF
Fourth intercostal space between ribs on RIGHT of sternum
V1
Fourth intercostal space between ribs of LEFT of sternum
V2
Located on 5th rib, located between V2 and V4
V3
Fifth intercostal space, MIDCLAVICULAR
V4
Fifth intercostal space; Anterior Axillary line
V5
Fifth intercostal space;Mid Axillary Line
V6